So to get more details what is going on inside let's try to start the game in verbose mode:LIBGL_DEBUG=verbose ./sacred

One of the lines showed the problemlibGL: dlopen /usr/lib/i386-linux-gnu/dri/i965_dri.so failed (/home/<path to the game>/lib/lib1/libm.so.6: version `GLIBC_2.27' not found (required by /usr/lib/i386-linux-gnu/dri/i965_dri.so))

Use find / -name "libm.so.6" command to find the right library in the system and replace existing library in the game folder using symbolic link to it:ln -s /lib/i386-linux-gnu/libm.so.6 /home/<path to the game>/lib/lib1/libm.so.6